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Top Questions
17
votes
Various proofs of Hardy's inequality
inequality
asked Jun 9, 2011 at 23:04
math.stackexchange.com
16
votes
Cauchy-Schwarz inequality and Hölder's inequality
inequality
asked Jul 2, 2011 at 19:50
math.stackexchange.com
14
votes
Proof of Pinsker's inequality.
analysis
probability-theory
inequality
information-theory
asked Apr 4, 2012 at 13:03
math.stackexchange.com
13
votes
How to show determinant of a specific matrix is nonnegative
matrices
asked May 13, 2011 at 17:28
math.stackexchange.com
12
votes
How to prove Halmos’s Inequality
functional-analysis
inequality
hilbert-spaces
operator-theory
banach-algebras
asked Aug 14, 2011 at 15:58
math.stackexchange.com
11
votes
invertible $\{0, 1\}$ matrix
linear-algebra
asked Mar 30, 2012 at 13:37
math.stackexchange.com
9
votes
A question on Gram matrix
matrices
asked Sep 13, 2011 at 2:38
math.stackexchange.com
8
votes
Multiplicity of eigenvalues
linear-algebra
asked Apr 23, 2012 at 19:39
math.stackexchange.com
8
votes
An algebra of nilpotent linear transformations is triangularizable
linear-algebra
asked Apr 19, 2012 at 1:00
math.stackexchange.com
7
votes
How to show a complex number inequality
inequality
complex-numbers
asked Jun 5, 2011 at 16:52
math.stackexchange.com
1
2
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Top Answers
31
Is it true that $\lvert \sin z \rvert \leq 1$ for all $z\in \mathbb{C}$?
math.stackexchange.com
18
Is A diagonalizable?
math.stackexchange.com
15
Is $T$ singular or nonsingular for $T(A)=AB - BA$?
math.stackexchange.com
11
Reference request: is mathematics discovered or created?
math.stackexchange.com
9
Cauchy-Schwarz inequality and three-letter identities (exercise 1.4 from "The Cauchy-Schwarz Master Class")
math.stackexchange.com
8
If $A,B$ are $n \times n$ complex matrices, then is it possible that $ABA-BAB =I$?
math.stackexchange.com
7
Any good Graduate Level linear algebra textbook for practice/problem solving?
math.stackexchange.com
6
eigenvalues of certain block matrices
math.stackexchange.com
6
Where to publish short notes?
math.stackexchange.com
6
Evaluating $\lim\limits_{x\to 0}(1+x)^{1/x}$?
math.stackexchange.com
5
How to Derive a Double Angle Identity.
math.stackexchange.com
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